Critical Failure:

Epic Improvisation:

Under the right circumstances, for a single moment a PC may uncannily pull off something they were never trained to do. You may use your inspiration to gain proficiency in one weapon, tool, or skill with a +2 bonus for one round.

Resting in Armor:

If characters choose to rest in armor the following apply. While one can sleep in armor, particularly if exhausted already. However if someone never takes off their armor they will eventually suffer from bedsores, armor bites, armor chaffing and a very savory aroma. This simulate this, if someone sleeps in their armor, upon awaking the need to make a Con saving throw or suffer one level of exhaustion. The Con saving throw is based on the armor type.

Resurrection Challenge:

Shield Bash:

You can use your shield to strike an opponent as a bonus action. Damage to the shield is 1d4 plus str modifier. Proficiency bonus is granted to hit is the character is proficient with shields. You will lose the benefit of the shield to armor class till the start of your next turn.

Spell Damage:

A spell may not cause double damage on the same turn that it is created. So if a spell causes damage when it is first created and then at the start of a turn. A creature lower on the initiative would potentially get damage twice in the same turn. This will not be allowed to happen.

Spell Points:

One way to modify how a class feels is to change how it uses its spells. With this variant system, a character who has the Spellcasting feature uses spell points instead of spell slots to fuel spells. Spell points give a caster more flexibility, at the cost of greater complexity.

After using the spell point system in the Dungeon Master’s Guide I have simplified things further.

Soaking Damage:

Making a soak roll draws upon your character’s inner resolve and determination to persevere, gritting through the pain and allowing them to press on. After taking damage, you may use your inspiration as a reaction in order to roll a single hit die and reduce the amount of damage dealt to you by number rolled, this does not actually expend that hit die. You may also choose to spend additional hit dice, up to half of your current total, although spending additional hit dice in this manner does remove them from your hit die pool as normal.